chore: update license file and metadata (#1504)

chore: update license file and metadata

Author: yoshi-automation

LICENSE

@@ -187,7 +187,7 @@
  same "printed page" as the copyright notice for easier
  identification within third-party archives.
 
- Copyright 2013 Google Inc.
+ Copyright [yyyy] [name of copyright owner]
 
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.

synth.metadata

@@ -1,5 +1,5 @@
 {
- "updateTime": "2018-12-08T12:05:37.886975Z",
+ "updateTime": "2018-12-12T12:06:29.527675Z",
  "sources": [
  {
  "template": {